R&D trend analysis based on patent mining: An integrated use of patent applications and invalidation data

Xiaotong Han(Beijing Institute of Technology), Tuğrul Daim(Portland State University), Ming Lei(Beijing University of Posts and Telecommunications), Donghua Zhu(Beijing Institute of Technology)
Technological Forecasting and Social Change
March 1, 2021
10.1016/j.techfore.2021.120691
Cited by 41

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